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Reoxygenation rate immediately after static short-term high intensity exercise indicates muscle oxidative capacity

Publication ,  Journal Article
Kime, R; Katsumura, T; Hamaoka, T; Osada, T; Sako, T; Murakami, M; Bae, SY; Toshinai, K; Haga, S; Shimomitsu, T
Published in: Applied Cardiopulmonary Pathophysiology
December 1, 2000

The purpose of this study was to determine whether the reoxygenation rate (Reoxy-rate) immediately after static exercise at various submaximal intensities could indicate the muscle oxidative capacity. Seven healthy male subjects performed a static hand grip exercise for 10 seconds at 30%, 60% and 90% MVC. The Reoxy-rate was monitored by near infrared spectroscopy (NIRS). The muscle oxidative capacity was evaluated by the time constant (Tc) of the phosphocreatine (PCr) resynthesis rate by using 31-phosphorus magnetic resonance spectroscopy (31P-MRS). There was no correlation between the muscle oxidative capacity and Reoxy-rate at 30% and 60% MVC. However, the Reoxy-rate at 90% MVC was significantly correlated to the muscle oxidative capacity (r=0.825, p<0.05). In conclusion, in the case of static short-term contraction at 90% MVC, the Reoxy-rate after exercise is an indicator of the muscle oxidative capacity. However, Reoxy-rate may not be correlated to muscle oxidative capacity at 60%MVC and lower.

Duke Scholars

Published In

Applied Cardiopulmonary Pathophysiology

ISSN

0920-5268

Publication Date

December 1, 2000

Volume

9

Issue

4

Start / End Page

343 / 347

Related Subject Headings

  • Anesthesiology
  • 1116 Medical Physiology
 

Citation

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Kime, R., Katsumura, T., Hamaoka, T., Osada, T., Sako, T., Murakami, M., … Shimomitsu, T. (2000). Reoxygenation rate immediately after static short-term high intensity exercise indicates muscle oxidative capacity. Applied Cardiopulmonary Pathophysiology, 9(4), 343–347.
Kime, R., T. Katsumura, T. Hamaoka, T. Osada, T. Sako, M. Murakami, S. Y. Bae, K. Toshinai, S. Haga, and T. Shimomitsu. “Reoxygenation rate immediately after static short-term high intensity exercise indicates muscle oxidative capacity.” Applied Cardiopulmonary Pathophysiology 9, no. 4 (December 1, 2000): 343–47.
Kime R, Katsumura T, Hamaoka T, Osada T, Sako T, Murakami M, et al. Reoxygenation rate immediately after static short-term high intensity exercise indicates muscle oxidative capacity. Applied Cardiopulmonary Pathophysiology. 2000 Dec 1;9(4):343–7.
Kime, R., et al. “Reoxygenation rate immediately after static short-term high intensity exercise indicates muscle oxidative capacity.” Applied Cardiopulmonary Pathophysiology, vol. 9, no. 4, Dec. 2000, pp. 343–47.
Kime R, Katsumura T, Hamaoka T, Osada T, Sako T, Murakami M, Bae SY, Toshinai K, Haga S, Shimomitsu T. Reoxygenation rate immediately after static short-term high intensity exercise indicates muscle oxidative capacity. Applied Cardiopulmonary Pathophysiology. 2000 Dec 1;9(4):343–347.

Published In

Applied Cardiopulmonary Pathophysiology

ISSN

0920-5268

Publication Date

December 1, 2000

Volume

9

Issue

4

Start / End Page

343 / 347

Related Subject Headings

  • Anesthesiology
  • 1116 Medical Physiology